WIP: drivers/tty/serial: add driver for ESP32 UART

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
jcmvbkbc · Jun 3, 2022 · 4475ad0 · 4475ad0
1 parent 3c05fe5
commit 4475ad0
Show file tree

Hide file tree

Showing 4 changed files with 401 additions and 0 deletions.
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
@@ -1590,6 +1590,15 @@ config SERIAL_SUNPLUS_CONSOLE
 	  you can alter that using a kernel command line option such as
 	  "console=ttySUPx".
 
+config SERIAL_ESP32
+	tristate "Espressif ESP32 UART driver support"
+	depends on XTENSA_PLATFORM_ESP32 || (COMPILE_TEST && OF)
+	select SERIAL_CORE
+	select SERIAL_CORE_CONSOLE
+	select SERIAL_EARLYCON
+	help
+	  Driver for Espressif ESP32 UARTs.
+
 endmenu
 
 config SERIAL_MCTRL_GPIO

diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile
@@ -88,6 +88,7 @@ obj-$(CONFIG_SERIAL_MILBEAUT_USIO) += milbeaut_usio.o
 obj-$(CONFIG_SERIAL_SIFIVE)	+= sifive.o
 obj-$(CONFIG_SERIAL_LITEUART) += liteuart.o
 obj-$(CONFIG_SERIAL_SUNPLUS)	+= sunplus-uart.o
+obj-$(CONFIG_SERIAL_ESP32)	+= esp32_uart.o
 
 # GPIOLIB helpers for modem control lines
 obj-$(CONFIG_SERIAL_MCTRL_GPIO)	+= serial_mctrl_gpio.o